Optimal Control of Non-Isothermal Viscoelastic Fluid

  title={Optimal Control of Non-Isothermal Viscoelastic Fluid},
  author={Karl Kunisch and X. Marduel},
Optimal control of viscoelastic uid ow in a 4 to 1 contracting channel is investigated. The control mechanism is based on heating or cooling the uid along a portion of the boundary of the ow domain. In order to perform the control, a non-isothermal model for viscoelastic uids is used consisting of the PTT model with relaxation time and elastic viscosity depending on temperature (following an exponential dependency, the WLF model). Moreover, the momentum, mass and constitutive equations are… CONTINUE READING


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